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Identification of beetles (Coleoptera)

Community and Forum → Insects identification → Identification of beetles (Coleoptera)

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27.02.2010 18:48, косинус

here's a bigger one

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27.02.2010 19:20, косинус

here's more

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27.02.2010 19:24, косинус

here are the others

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27.02.2010 20:17, Mylabris

Dear colleagues, maybe someone knows this bug? I somehow can't even decide on the tribe, maybe someone close to the Ditomuses?.. Size about 16 mm, South Kaz-tan, Ustyurt.

This post was edited by Mylabris - 27.02.2010 21: 11

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Likes: 3

27.02.2010 20:39, Алексей Сажнев

probably Carenochyrus I have only 1 copy. such from Kyrgyzstan as titanus Solsky, 1874
Likes: 4

27.02.2010 21:44, RippeR

beetle well, just super looks, never seen such a thing. pronotum like leistus, everything else is harpalinine like)

27.02.2010 21:53, Victor Titov

help me identify the beetles

In the second (lower) photo, the first beetle on the left is Byctiscus betulae (you will see it later in the enlarged image). The next one, second from the left, is also Byctiscus sp., it should be increased to the type.

This post was edited by Dmitrich - 02/27/2010 21: 54

27.02.2010 22:15, косинус

here's an evasion

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27.02.2010 22:32, Mylabris

probably Carenochyrus I have only 1 copy. such as titanus Solsky from Kyrgyzstan, 1874

It's a pity I didn't Google the photos. But this genus is monotypic, so that no one but titanus can be. Thank you, Alexey! beer.gif

27.02.2010 23:44, Victor Titov

here's an evasion

It also seems to be Byctiscus betulae; although it is still poorly visible, Byctiscus populi is always two-colored - its bottom is blue.

28.02.2010 16:08, akulich-sibiria

here's more


Malachius aeneus presumably

28.02.2010 16:10, akulich-sibiria

help us identify the nutcrackers from Altai

tertius right nutcracker looks like ampedus praeustus

28.02.2010 16:15, akulich-sibiria

Staf is from the Omaliinae subfamily. And do not stab these beetles so cruelly in the future - I can't look at such pictures without shuddering.

It's not my staff, I'm just tinkering with the material, I feel sorry for it myself, but in this state it's better not to touch it.
As I understand it, Omaliinae is a complex group...

02.03.2010 18:25, akulich-sibiria

a beetle from the genus Silvanus, I can't figure out if it has whiskey or not. They do not seem to be large, but they are sharp, but there are no longitudinal indentations on the pronotum. Therefore I can't understand fagi is either bidentatus or unidentatus
3 mm it was caught in the Krasnoyarsk Territory under the bark of fir and a similar beetle under the bark of poplar
picture: Р8200177а.јрд
picture: Р8200178а.јрд

02.03.2010 19:40, Andrey.A.

beetle of the genus Silvanus,




Similar to S. unidentatus, fagi has no temples.
Likes: 1

02.03.2010 19:48, косинус

And the big weevil whose photo I posted is not by chance Cleonis pigra

02.03.2010 20:16, akulich-sibiria

Similar to S. unidentatus, fagi has no temples.

thank you, I also decided on it. Although the shape of the temples is a little confusing...well here I think you just need to compare

03.03.2010 13:12, Victor Titov

And the big weevil whose photo I posted is not by chance Cleonis pigra

Which one is it?
here's a bigger one

If this one is definitely not him.
here are the others

And in this post of yours, the bottom image is most likely Tanymecus palliatus (Fabricius, 1787).

03.03.2010 16:04, Трофим

help us identify the nutcrackers from Altai


Red-Ampedus ?praeustus

04.03.2010 14:08, akulich-sibiria

Help with Agonum Caught in a birch-fir forest, in a damp place. 10 mm
. Whiskers are brown, pronotum with notched edges at the posterior corners. Its side edges are rather strongly bent.The main depressions are wavy, low-point. The underparts are dark brown and opaque.
The mustache is pubescent on the 4th. There are three bristle-bearing pores in the 3rd row
As a variant of A. assimile
picture: Р8220185а.јрд
picture: Р8220186а.јрд
picture: Р8220187а.јрд
picture: Р8220189а.јрд

07.03.2010 11:49, Andrey Ponomarev

confused.gif Help me identify Aphodia M. O. June 2009

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07.03.2010 13:16, vasiliy-feoktistov

  confused.gif Help me identify Aphodia M. O. June 2009

Aphodius rufipes Linnaeus, 1758
Likes: 1

08.03.2010 20:14, BO.

I've had Camponotus vagus ants for about a year now.
The dwelling consists of an arena (a small aquarium with a piece of poplar bark) and a formicarium of a gypsum slab in glass, connected to each other by a tube.
A few days ago, before going to work, I sat down in front of goosebumps for a couple of minutes. A male came to the death chamber to die, quite accidentally noticed the movement, managed to see a strange creature, very small..
I took a picture in a hurry, time was running out.. I've been looking at everything with a magnifying glass for a few days and I can't find these small fry.
It's not an important picture, but who is it anyway?
Astrakhan

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08.03.2010 20:24, omar

hay eater as budto

08.03.2010 20:29, Алексей Сажнев

I'm also for hay eater

08.03.2010 21:07, BO.

Thank you very much!

The post was edited by BO. - 09.03.2010 01:44

10.03.2010 9:04, Sugercete

I ask for the help of specialists in determining (MO):

user posted image

Thank You

10.03.2010 9:15, Алексей Сажнев

Poecilus is probably cupreus, but it can also be lepidus
Likes: 1

10.03.2010 9:53, Sugercete

Poecilus is probably cupreus, but it can also be lepidus


Thank you very much, but is there an easy way to distinguish them from each other?
I have about a dozen of them, although there are no two of the same shade among them. From green to purple. All of them have red sawyers on their first two segments. In those photos that I found on the Internet, they are red in kupreus, and in lepidus-black.

Cool? wink.gif

This post was edited by Sugercete - 10.03.2010 10: 29

10.03.2010 10:28, Sugercete

Thank you very much, but is there an easy way to distinguish them from each other?
I have about a dozen of them. All of them have red sawyers on their first two segments. In those photos that I found on the Internet, they are red in kupreus, and in lepidus-black.

Cool? wink.gif


Precisely!
I found in Jacobson the thesis on Cupreus "the first two segments of the sawyere are red", and the antithesis is cast on Lepidus, who has a black sawyere umnik.gif

This post was edited by Sugercete - 10.03.2010 10: 30

10.03.2010 11:31, Victor Titov

I ask for the help of specialists in determining (MO):

Poecilus is probably cupreus, but it can also be lepidus

Well, about lepidus-this is, to put it mildly, unlikely no.gif, but the option with Poecilus versicolor should be carefully considered (you can't dilute them with cupreus without a bottlewall.gif).
  
Cool? wink.gif

Yes, all the platitudes.

This post was edited by Dmitrich - 10.03.2010 11: 33
Likes: 1

10.03.2010 13:29, Алексей Сажнев

Well, about lepidus-this is, to put it mildly, unlikely no.gif, but the option with Poecilus versicolor should be carefully considered (you can't dilute them with cupreus without a bottlewall.gif).


These results are very ambiguous. Cupreus is generally slightly larger, the head is dotted, and the humeral denticle of the elytra is implicit, whereas verticolor has it, although small, and its head is mostly smooth. Cupreus still has elytra, slightly wider than the base of the pronotum.

So I'm still for kupreus

This post was edited by Alexey Sazhnev - 10.03.2010 13: 30
Likes: 1

10.03.2010 13:48, Victor Titov

These results are very ambiguous. Cupreus is generally slightly larger, the head is dotted, and the humeral denticle of the elytra is implicit, whereas verticolor has it, although small, and its head is mostly smooth. Cupreus still has elytra, slightly wider than the base of the pronotum.

So I'm still for kupreus

There are also "breeding" signs: cupreus has hind legs on the inner side with a row of 8-10 light, thin and long bristles, and versicolor has the inner side of the hind legs with 5-7, less often 8 short, strong and dark bristles.

This post was edited by Dmitrich - 10.03.2010 13: 49
Likes: 3

10.03.2010 20:48, akulich-sibiria

what thread can I tell from my agonum on this page?

10.03.2010 23:40, Sugercete

There are also "breeding" signs: cupreus has hind legs on the inner side with a row of 8-10 light, thin and long bristles, and versicolor has the inner side of the hind legs with 5-7, less often 8 short, strong and dark bristles.

Dear Dmitrich, please tell me, does Versicolor have the same first two segments of mustache red?
I didn't find any Versicolor from Jacobson. What was it called at that time?

This post was edited by Sugercete - 10.03.2010 23: 40

10.03.2010 23:43, Алексей Сажнев

Yes, he has the first segments of the antennae yellow - why do you need Jacobson, they have already written a bunch of signs to differentiate these two species )) and so poicelus can be found in pterostichus - they were previously combined

This post was edited by Alexey Sazhnev - 10.03.2010 23: 47
Likes: 2

11.03.2010 11:21, Victor Titov

Dear Dmitrich, please tell me, does Versicolor have the same first two segments of mustache red?
I didn't find any Versicolor from Jacobson. What was it called at that time?

In the 1931 Jacobson beetle guide, Poecilus versicolor is included in the genus Platysma Bon. (Pterostichus Bon., Feronia Ltr.) like P. coerulescens L.

This post was edited by Dmitrich - 11.03.2010 11: 36
Likes: 1

11.03.2010 18:39, BO.

Good afternoon!
Another small bug. 2-3mm.
I have a whole colony of them right now. I got a jar of spices, brought 3 years ago from Abkhazia, did not open. It's full of dead beetles,
I put wet cotton wool in it, but there are live ones and larvae. For a long time they held out in complete isolation.
tell me what kind of bug it is.

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11.03.2010 19:05, Алексей Сажнев

they resemble Lasioderma serricorne
Likes: 1

11.03.2010 19:42, Mantispid

He is the most Lasioderma serricorne-a small tobacconist beetle, a terrible pest of various food products.

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